Contract of Affreightment (COA) differs from a Spot Voyage Charter because COA can include:

• A. Multiple voyage charters
• B. Only one voyage at a time
• C. Only time-based terms
• D. No freight costs

Answer: (A)

A contract of affreightment is a long-term arrangement that covers a stream of shipments over a period, rather than just one voyage. Because of that, it can include multiple voyage charters within a single agreement, securing capacity and freight terms across several trips and possibly over more than one voyage. This makes it distinct from a Spot Voyage Charter, which is arranged for a single voyage only.

So, the defining point is that a COA can cover multiple voyages under one contract. The other ideas don’t fit: a single voyage at a time is typical of a spot charter, COAs aren’t limited to only time-based terms, and freight costs are part of a COA, not omitted.